Risposto
Matlab spdiags function not do what I expect
"Why is C so different from the previous two?" Look at your code! On this line you completely overwite B with a completely diff...

12 mesi fa | 0

| accettato

Risposto
Hi everybody. I'm kind of new to MATLAb and looking to get more efficient in my coding. This feels clunky to me and I feel like I could definitely shorten it. Any ideas?
Vectorize your code: https://www.mathworks.com/help/matlab/matlab_prog/vectorization.html Engine = ["LO2/LH2";"LO2/CH4";"ST...

circa un anno fa | 0

Risposto
How do I print one value on one row and another on the next
Taking a wild guess: fmt = '%s %10.8f %10.8f %10.8f\r\n'; for i = 1:2:size(unit,1) fprintf(fid_1, fmt,'B',unit(i+0,1:3));...

circa un anno fa | 0

| accettato

Risposto
Create multiple subtables from multiple .tsv tables
"The following code does it only for the first .tsv file. Any hint to go recursively over the 120 .tsv files? " There is nothin...

circa un anno fa | 0

| accettato

Risposto
How to import multiple .mat files into the same workspace
"The problem is that the content of the most recent .mat file overwrites the previous one since the name of the arrays is always...

circa un anno fa | 1

| accettato

Risposto
Run for loop 1000 times and get distribution of results
T = 1; N = 2^8; dt = 1/N; r = 1; G = 0.7; e = 0.5; R = 2; Dt = R*dt; L = N/R; M = 1000; Xem = nan(M,L); for...

circa un anno fa | 0

| accettato

Risposto
define an objective function with user defined number of variables in fminunc()
"How do I define the objective function fun() such that it automatically adapts to the number of variables." fun = @(x) sum(x.^...

circa un anno fa | 0

Risposto
Trying to create a drop down that will open a new uifigure, nothing happens when I click confirm?
Simpler solution: get rid of dda.ItemsData. Then .Value is exactly the text that is shown in the menu. This is explained here: ...

circa un anno fa | 1

Risposto
how to read the data of type a*b?
str = '1*5 5*4 6 8 3 12 -5 9*0 7*-1'; vec = sscanf(str,'%f%*[ *]',[1,Inf])

circa un anno fa | 0

| accettato

Risposto
Error when creating a tensor from a for loop
"Can anyone tell me what is causing this problem?" Explanation Look at the values that you are using as indices. For the 1st c...

circa un anno fa | 0

| accettato

Risposto
I want to build the matrix
m = 4; n = 3; A = randi(9,n) C = [{zeros(n),eye(n)},arrayfun(@(p)A^p,1:m-1,'uni',0)]; G = cell2mat(C(1+tril(toeplitz(1:m))...

circa un anno fa | 0

Risposto
Combine multiple varying length double arrays into one timetable
"I assume there has to be a better way of doing this than iteratively calling each variable..." Note that synchronize accepts 1...

circa un anno fa | 1

Risposto
I want to divide an array into x number of smaller arrays of size [m x n] (where x is = m *n) and then using a for loop fill those smaller arrays with the same value
Changing your perspective on this problem would make it easier. A much simpler approach would be to use REPELEM: U = [3,9,6;2,...

circa un anno fa | 1

Risposto
TIPS ON ENTERING FUNCTION INPUT
https://www.mathworks.com/help/matlab/matlab_prog/customize-code-suggestions-and-completions.html

circa un anno fa | 0

| accettato

Risposto
Why does my function that should modify cells from an input return exactly the input every time?
This line: for j=size(p_cell,1) % y coord should be for j=1:size(p_cell,1) % y coord % ^^ After that you will need to f...

circa un anno fa | 0

| accettato

Risposto
EXCEL TABLE - INDEXING MULTIPLE TABLES AT ONCE
Here is one approach using READCELL. It assumes that all data blocks are aligned, and then within each block: the 3rd cell of ...

circa un anno fa | 0

| accettato

Risposto
How to group number sequences in a vector
V1 = [1,1,1,2,2,3,3,3,1,1,3,3,3,2,2,2,1,1,1]; R1 = sprintf('\3+\2+\1+'); [Xs,Xe] = regexp(char(V1),R1) Some values would requ...

circa un anno fa | 1

| accettato

Risposto
Not enough input arguments
Your function parameterisation is incorrect. This anonymous function: @(t,y,MAP,Nstep,xNOL)ActualmodelwithPinfinity(t,y,MAP(:,k...

circa un anno fa | 0

Risposto
how to convert a matlab variable name to a char for use in a title, legend, etc
https://www.mathworks.com/help/matlab/ref/inputname.html function(input_matrix) in_name = inputname(1); ... title(in_name) ...

circa un anno fa | 0

| accettato

Risposto
for loop for non integer values
It is usually much easier and clearer to loop over indices, rather than over data values: V = 1:0.5:10; E = nan(..); % preallo...

circa un anno fa | 1

Risposto
"Not enough input arguments" error when using fullfile
"I dont see how I dont have enough input arguments? " Very easily, when S1 is empty: S1 = dir('thisNameDoesNot*Exist') F1 = f...

circa un anno fa | 0

Risposto
Is griddedinterpolant omits NaN?
None of the pure interpolation routines will "omit" NaN values. NaN values will propagate from input to output, just as they sh...

circa un anno fa | 0

Risposto
I keep getting the "not enough inputs error" and I don't know how to fix it
"i get the " not enough input arguments " error pointing at the x(1) in the F(1) equation" That error is caused by the fact tha...

circa un anno fa | 0

Risposto
Trying to graph a function I made but it seems to only take the first x value.
Explanation The basic problem is that you wrote your function assuming only a scalar input: Fresnel(2) However you did not wr...

circa un anno fa | 1

| accettato

Risposto
Command findobj('Type','FunctionLine') produces error if used after fplot invoked with three arguments, fplot(X,Y,LIMITS) - 0×0 empty GraphicsPlaceholder array
A curve defined by a function of X and a function of Y is a parametric curve, so you would need to search for the corresponding ...

circa un anno fa | 0

| accettato

Risposto
Error while reading the .csv file
Explanation: As its documentation makes clear, the first input to FOPEN must be the fiename. However, instead of calling it with...

circa un anno fa | 0

Risposto
syntax of this line tmp = cellfun(@(tbl) tbl(:, cellstr(dataVariables(ct))), trainDataNormalized, 'UniformOutput', false);% in RUL tutorial
"I can't figure out what @(tbl) tbl is supposed to do , I didn't create neither a function or a variable with such a name, t...

circa un anno fa | 0

| accettato

Risposto
Why does converting categorical(0) to double add 1?
"Why, when converting "a" to double, does "a" become 1, when it was categorical(0) before?" It doesn't. Your comparison is not ...

circa un anno fa | 0

Risposto
unexpected response when trying to concatenate by row after accessing cell value
The MATLAB approach is to simply call VERTCAT instead of the concatenation operator: C = {[5,1];[4 1];[3 1];[2 1];[1 1]}; M = ...

circa un anno fa | 0

| accettato

Risposto
Read big file with mixed data types with datastore
ds = datastore('./*.txt', 'Type','tabulartext', 'NumHeaderLines',2, 'TextscanFormats',repmat("%f",1,5)); T = preview(ds)

circa un anno fa | 0

Carica altro